In this fascinating episode, we explore the methods used to catch some of history's most notorious serial killers. Research shows that there is no single way these predators are caught—but there are distinct patterns that emerge again and again. A study of over 670 serial homicide perpetrators identified 22 distinct methods of identification, with the most common being that a victim survived the attack[citation:1]. Other frequent methods include DNA analysis, being turned in by an associate or family member, fingerprints, prior offending history, and being arrested for an unrelated charge[citation:1].
The real stories are just as revealing: Ted Bundy was arrested after a traffic stop—but was only linked to his murder spree through painstaking detective work[citation:9][citation:3]. David Berkowitz (Son of Sam) was caught by a parking ticket, a classic mistake made by a killer[citation:10]. Jeffrey Dahmer was identified after a victim escaped from his apartment[citation:10]. Ed Gein's arrest came when police searched his property after a victim's disappearance[citation:9]. And the Golden State Killer was finally captured decades later using DNA-based genetic genealogy—a method that didn't exist when he committed his crimes[citation:7][citation:10].
We also explore the role of criminal profiling in catching killers: the FBI's Behavioral Science Unit pioneered psychological profiling in the 1970s, helping to focus investigations on likely suspects[citation:6][citation:8]. Geographic profiling and forensic science have also become essential tools in narrowing down search areas and linking crimes[citation:2][citation:5][citation:12].
Join us as we uncover the fascinating, sometimes surprising ways that serial killers are tracked, identified, and brought to justice—and discover the tools and techniques that make it possible.